WM8146 Wolfson Microelectronics Ltd., WM8146 Datasheet - Page 2

• Manufacturer Part Number: WM8146
• Description: 12-bit ( 8+4-bit ) Linear Sensor Image Processor
• Manufacturer: Wolfson Microelectronics Ltd.

WM8146
PIN CONFIGURATION
PIN DESCRIPTION
WOLFSON MICROELECTRONICS LTD
PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
A G N D 2
D V D D 1
D V D D 2
M C L K
D G N D
V S M P
OP[0]
OP[1]
RINP
AGND2
DVDD1
DVDD2
AGND1
O E B
S C K
R L C
S E N
DGND
VSMP
MCLK
AVDD
SDI
NAME
VRLC
OP[0]
OP[1]
OP[2]
OP[3]
OP[4]
OP[5]
OP[6]
OP[7]
VMID
GINP
RINP
BINP
OEB
RLC
SEN
SCK
VRB
VRT
SDI
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
Analogue output
Analogue output
Analogue output
Analogue output
W M 8 1 4 6
Analogue input
Analogue input
Analogue input
Digital output
Digital output
Digital output
Digital output
Digital output
Digital output
Digital output
Digital output
Digital input
Digital input
Digital input
Digital input
Digital input
Digital input
Digital input
Supply
Supply
Supply
Supply
Supply
Supply
TYPE
2 8
2 7
2 6
2 5
2 4
2 3
2 2
2 1
2 0
1 9
1 8
1 7
1 6
1 5
GINP
BINP
V R L C
VMID
VRT
V R B
A G N D 1
A V D D
OP[7]
OP[6]
OP[5]
OP[4]
OP[3]
OP[2]
DESCRIPTION
Red channel input video.
Analogue ground (0V).
Digital supply (5V) for logic and clock generator. This must be operated at the same
potential as AVDD.
Output Hi-Z control, all digital outputs disabled when OEB = 1.
Video sample synchronisation pulse.
Selects reset level clamp on a pixel-by-pixel basis – active high. Tie high to use on
every pixel.
Master clock. This clock is applied at N times the input pixel rate (N = 2, 3, 6, 8 or
any multiple of 2 thereafter depending on input sample mode).
Digital ground (0V).
Enables the serial interface when high.
Digital supply (5V/3.3V), all digital I/O pins.
Serial interface data input.
Serial interface clock.
Digital multiplexed output data bus.
OEB = 0: ADC output data is available in (8+4bit) multiplexed format on pins OP[7] to
OP[0]. See Operational Timing diagrams for details.
OEB = 1: Output is Hi=Z.
Analogue supply (5V). This must be operated at the same potential as DVDD1.
Analogue ground (0V).
Lower reference point of ADC reference string
This pin must be connected to AGND via a decoupling capacitor.
Upper reference point of ADC reference string
This pin must be connected to AGND via a decoupling capacitor.
Buffered mid-point of ADC reference string
This pin must be connected to AGND via a decoupling capacitor.
Selectable analogue output voltage for RLC.
This pin must be connected to AGND via a decoupling capacitor.
Blue channel input video.
Green channel input video.
ORDERING INFORMATION
XWM8146CDW/V
DEVICE
TEMP. RANGE
0 to 70
o
C
PP Rev 1.1 January 2000
28-pin SOIC
PACKAGE
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